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Finding the Fourth Proportional to 60,306.66, 90,475.11 and 52,739.64

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Solution

The fourth proportional to 60,306.66, 90,475.11 and 52,739.64 is: 79,122.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,306.66 : 90,475.11 = 52,739.64 : x
  2. Step 2: Convert to fraction form
    60,306.66/90,475.11 = 52,739.64/x
  3. Step 3: Cross multiply
    60,306.66x = 90,475.11 × 52,739.64
  4. Step 4: Simplify right side
    60,306.66x = 4,771,624,730.36
  5. Step 5: Solve for x
    x = 4,771,624,730.36/60,306.66
  6. Step 6: Final answer
    x = 79,122.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.